/*
 * Copyright (c) 1997, 2004, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

package com.sun.java.swing.plaf.motif;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

import java.util.EventListener;

import javax.swing.plaf.basic.*;
import javax.swing.border.*;
import javax.swing.plaf.*;


/**
 * A Motif L&F implementation of InternalFrame.
 * <p>
 * <strong>Warning:</strong>
 * Serialized objects of this class will not be compatible with
 * future Swing releases.  The current serialization support is appropriate
 * for short term storage or RMI between applications running the same
 * version of Swing.  A future release of Swing will provide support for
 * long term persistence.
 *
 * @author Tom Ball
 */
public class MotifInternalFrameUI extends BasicInternalFrameUI {

  Color color;
  Color highlight;
  Color shadow;
  MotifInternalFrameTitlePane titlePane;

  /**
   * As of Java 2 platform v1.3 this previously undocumented field is no
   * longer used.
   * Key bindings are now defined by the LookAndFeel, please refer to
   * the key bindings specification for further details.
   *
   * @deprecated As of Java 2 platform v1.3.
   */
  @Deprecated
  protected KeyStroke closeMenuKey;


  /////////////////////////////////////////////////////////////////////////////
// ComponentUI Interface Implementation methods
/////////////////////////////////////////////////////////////////////////////
  public static ComponentUI createUI(JComponent w) {
    return new MotifInternalFrameUI((JInternalFrame) w);
  }

  public MotifInternalFrameUI(JInternalFrame w) {
    super(w);
  }

  public void installUI(JComponent c) {
    super.installUI(c);
    setColors((JInternalFrame) c);
  }

  protected void installDefaults() {
    Border frameBorder = frame.getBorder();
    frame.setLayout(internalFrameLayout = createLayoutManager());
    if (frameBorder == null || frameBorder instanceof UIResource) {
      frame.setBorder(new MotifBorders.InternalFrameBorder(frame));
    }
  }


  protected void installKeyboardActions() {
    super.installKeyboardActions();
    // We replace the
    // we use JPopup in our TitlePane so need escape support
    closeMenuKey = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
  }


  protected void uninstallDefaults() {
    LookAndFeel.uninstallBorder(frame);
    frame.setLayout(null);
    internalFrameLayout = null;
  }

  private JInternalFrame getFrame() {
    return frame;
  }

  public JComponent createNorthPane(JInternalFrame w) {
    titlePane = new MotifInternalFrameTitlePane(w);
    return titlePane;
  }

  public Dimension getMaximumSize(JComponent x) {
    return Toolkit.getDefaultToolkit().getScreenSize();
  }

  protected void uninstallKeyboardActions() {
    super.uninstallKeyboardActions();
    if (isKeyBindingRegistered()) {
      JInternalFrame.JDesktopIcon di = frame.getDesktopIcon();
      SwingUtilities.replaceUIActionMap(di, null);
      SwingUtilities.replaceUIInputMap(di, JComponent.WHEN_IN_FOCUSED_WINDOW,
          null);
    }
  }

  protected void setupMenuOpenKey() {
    super.setupMenuOpenKey();
    ActionMap map = SwingUtilities.getUIActionMap(frame);
    if (map != null) {
      // BasicInternalFrameUI creates an action with the same name, we override
      // it as MotifInternalFrameTitlePane has a titlePane ivar that shadows the
      // titlePane ivar in BasicInternalFrameUI, making supers action throw
      // an NPE for us.
      map.put("showSystemMenu", new AbstractAction() {
        public void actionPerformed(ActionEvent e) {
          titlePane.showSystemMenu();
        }

        public boolean isEnabled() {
          return isKeyBindingActive();
        }
      });
    }
  }

  protected void setupMenuCloseKey() {
    ActionMap map = SwingUtilities.getUIActionMap(frame);
    if (map != null) {
      map.put("hideSystemMenu", new AbstractAction() {
        public void actionPerformed(ActionEvent e) {
          titlePane.hideSystemMenu();
        }

        public boolean isEnabled() {
          return isKeyBindingActive();
        }
      });
    }

    // Set up the bindings for the DesktopIcon, it is odd that
    // we install them, and not the desktop icon.
    JInternalFrame.JDesktopIcon di = frame.getDesktopIcon();
    InputMap diInputMap = SwingUtilities.getUIInputMap
        (di, JComponent.WHEN_IN_FOCUSED_WINDOW);
    if (diInputMap == null) {
      Object[] bindings = (Object[]) UIManager.get
          ("DesktopIcon.windowBindings");
      if (bindings != null) {
        diInputMap = LookAndFeel.makeComponentInputMap(di, bindings);

        SwingUtilities.replaceUIInputMap(di, JComponent.
                WHEN_IN_FOCUSED_WINDOW,
            diInputMap);
      }
    }
    ActionMap diActionMap = SwingUtilities.getUIActionMap(di);
    if (diActionMap == null) {
      diActionMap = new ActionMapUIResource();
      diActionMap.put("hideSystemMenu", new AbstractAction() {
        public void actionPerformed(ActionEvent e) {
          JInternalFrame.JDesktopIcon icon = getFrame().
              getDesktopIcon();
          MotifDesktopIconUI micon = (MotifDesktopIconUI) icon.
              getUI();
          micon.hideSystemMenu();
        }

        public boolean isEnabled() {
          return isKeyBindingActive();
        }
      });
      SwingUtilities.replaceUIActionMap(di, diActionMap);
    }
  }

  /**
   * This method is called when the frame becomes selected.
   */
  protected void activateFrame(JInternalFrame f) {
    super.activateFrame(f);
    setColors(f);
  }

  /**
   * This method is called when the frame is no longer selected.
   */
  protected void deactivateFrame(JInternalFrame f) {
    setColors(f);
    super.deactivateFrame(f);
  }

  void setColors(JInternalFrame frame) {
    if (frame.isSelected()) {
      color = UIManager.getColor("InternalFrame.activeTitleBackground");
    } else {
      color = UIManager.getColor("InternalFrame.inactiveTitleBackground");
    }
    highlight = color.brighter();
    shadow = color.darker().darker();
    titlePane.setColors(color, highlight, shadow);
  }
}
